Table 2: Calculated step line tension ( 𝛽 𝐴 ) and step line tension as function of the gold atom radius ( 𝛽 𝐴 , 𝑎 | | ) at different temperatures.

T( K) 𝛽 𝐴 ( m e V / n m ) 𝛽 𝐴 , 𝑎 | | ( m e V )

200399115
400453131
600557161
800650187